An inclined vane for a flour mill classifier

Abstract

The utility model relates to the technical field of classifier, especially a kind of oblique blade for flour mill classifier, including fixed ring, the bottom of fixed ring is fixedly installed with multiple blades, multiple the blade equidistantly is set along the circumference of fixed ring, the outside wall of blade is fixedly connected with rotating frame;The inside of each blade is equipped with inside tangential part, the side of each blade away from inside tangential part is equipped with extrusion tangential part, inside tangential part is located at the side away from rotating frame, extrusion tangential part is located at the side close to rotating frame.The utility model realizes the separation effect of reinforcing material by inside tangential part and extrusion tangential part set in the inside and outside of blade, accelerates the material discharge rate, simultaneously realizes the secondary acceleration discharge of material by extrusion tangential part, further improves the separation efficiency of material, compared with traditional single angle blade, effectively improves the separation effect of flour mill classifier.

Description

Technical Field

[0001] This utility model relates to the field of classifier technology, and in particular to an inclined blade for a classifier of a grinding mill. Background Technology

[0002] A classifier is an industrial device that separates mixed materials into different components according to preset standards (such as particle size, purity level, and component ratio) based on the physical properties of the materials.

[0003] For example, the existing patent publication number CN221602545U discloses a classifier with inclined blades for a grinding mill. This utility model uses blades, and the inclined blade design makes the powder subject to greater centrifugal repulsion during the classification process, thereby more effectively separating particles of different sizes. This design can quickly separate larger particles from the mainstream and reintroduce them into the grinding mill for further crushing, thereby improving classification efficiency. Compared with traditional radial blades, inclined blades have greater centrifugal force and centrifugal repulsion surface, resulting in a wider particle size adjustment range. However, the angle of the inclined blades is fixed, and the separation effect can only be enhanced by continuously increasing the rotation speed, which needs to be improved. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an inclined blade for a mill classifier, which solves the technical problem of poor separation effect of the mill classifier caused by the blade angle.

[0005] To solve the above technical problems, the present invention provides the following technical solution: an inclined blade for a classifier of a grinding mill, comprising a fixed ring, wherein multiple blades are fixedly installed at the bottom of the fixed ring, the multiple blades are equidistantly arranged along the circumference of the fixed ring, and a rotating frame is fixedly connected to the outer side wall of the blades;

[0006] Each blade has an inner tangential portion on its inner side and a compression tangential portion on the side of each blade away from the inner tangential portion. The inner tangential portion is located on the side away from the rotating frame, and the compression tangential portion is located on the side closer to the rotating frame.

[0007] Preferably, the spacing between adjacent blades gradually increases along the direction from the fixed ring to the rotating frame.

[0008] Preferably, the distance between the extrusion tangential portion and the rotating frame gradually increases along the direction from the fixed ring to the rotating frame.

[0009] Preferably, the side of the inner tangential portion facing away from the extrusion tangential portion is set as an inclined surface and extends to the inner wall of the rotating frame.

[0010] Preferably, the surfaces of the inner tangential portion and the extrusion tangential portion are both curved surfaces.

[0011] By means of the above technical solution, this utility model provides an inclined blade for a classifier of a grinding mill, which has at least the following beneficial effects:

[0012] This invention enhances material separation by using an inner tangential section and a compression tangential section on the inner and outer sides of the blades. The centrifugal force generated during the rotation of the inner tangential section contacts the material, accelerating the material discharge rate. At the same time, the compression tangential section provides secondary acceleration for material discharge, further improving the material separation efficiency. Compared with traditional single-angle blades, this invention effectively improves the separation effect of the mill classifier. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the bottom three-dimensional structure of this utility model;

[0016] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0017] Figure 4 This is a schematic diagram of the bottom structure of this utility model;

[0018] Figure 5 This is a side sectional view of the present invention.

[0019] In the figure: 1. Fixed ring; 101. Blade; 102. Inner tangential part; 103. Extrusion tangential part; 2. Rotating frame. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Please refer to Figures 1-5An inclined blade for a classifier of a grinding mill includes a fixed ring 1, a plurality of blades 101 are fixedly installed at the bottom of the fixed ring 1, the plurality of blades 101 are equidistantly arranged along the circumference of the fixed ring 1, and a rotating frame 2 is fixedly connected to the outer side wall of the blades 1.

[0023] Each blade 101 has an inner tangential portion 102 on its inner side, and a pressing tangential portion 103 on the side of each blade 101 away from the inner tangential portion 102. The inner tangential portion 102 is located on the side away from the rotating frame 2, and the pressing tangential portion 103 is located on the side closer to the rotating frame 2. The rotating frame 2 drives the blade 101 along... Figure 1 When rotating clockwise, the raw material comes into contact with the side wall of the inner tangential section 102. As the distance between adjacent blades 101 gradually increases from top to bottom, the material is squeezed and conveyed through the inner tangential section 102, which increases the separation effect of the raw material.

[0024] The spacing between adjacent blades 101 gradually increases along the direction from the fixed ring 1 to the rotating frame 2, ensuring that when the blade 101 rotates, the raw material contacts the inner tangential portion 102 of the sidewall of the blade 101, and the raw material is sorted and discharged between adjacent blades 101.

[0025] The distance between the extrusion tangential section 103 and the rotating frame 2 gradually increases along the direction from the fixed ring 1 to the rotating frame 2. The raw material located in the gap between the extrusion tangential section 103 and the rotating frame 2 is extruded and discharged in the vertical direction under the action of the centrifugal force of rotation, which further improves the separation effect of the raw material.

[0026] The side of the inner tangential portion 102 facing away from the extrusion tangential portion 103 is set as an inclined surface and extends to the inner wall of the rotating frame 2. After the material comes into contact with the inner tangential portion 102, it is sorted and discharged from between adjacent blades 101 along the inclined surface. The surfaces of the inner tangential portion 102 and the extrusion tangential portion 103 are both curved surfaces, which ensures that the material is discharged quickly after coming into contact with the inner tangential portion 102 and the extrusion tangential portion 103.

[0027] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Since the above embodiments are substantially similar to the method embodiments, their descriptions are relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An inclined blade for a classifier in a grinding mill, comprising a fixing ring (1), characterized in that: Multiple blades (101) are fixedly installed at the bottom of the fixed ring (1). The multiple blades (101) are equidistantly arranged along the circumference of the fixed ring (1). A rotating frame (2) is fixedly connected to the outer wall of the blade (101). Each blade (101) has an inner tangential portion (102) on its inner side, and each blade (101) has a pressing tangential portion (103) on its side away from the inner tangential portion (102). The inner tangential portion (102) is located on the side away from the rotating frame (2), and the pressing tangential portion (103) is located on the side close to the rotating frame (2).

2. The inclined blade for a classifier in a grinding mill according to claim 1, characterized in that: The spacing between adjacent blades (101) gradually increases along the direction from the fixed ring (1) to the rotating frame (2).

3. The inclined blade for a classifier in a grinding mill according to claim 1, characterized in that: The distance between the extrusion tangential part (103) and the rotating frame (2) gradually increases along the direction from the fixed ring (1) to the rotating frame (2).

4. The inclined blade for a classifier in a grinding mill according to claim 1, characterized in that: The inner tangential portion (102) is set as an inclined surface on the side opposite to the extrusion tangential portion (103) and extends to the inner wall of the rotating frame (2).

5. The inclined blade for a classifier in a grinding mill according to claim 1, characterized in that: The surfaces of the inner tangential portion (102) and the extrusion tangential portion (103) are both curved surfaces.

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